#3D6DA3
Closest named color: Muted Blue (#3B719F). oklch(52.6% 0.101 252.7), rgb(61, 109, 163).
Aa
White text reads best on this color (5.36:1).
About this color
#3D6DA3 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.101 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Muted Blue (#3B719F), ΔE 0.015 away. White text reads best on it, at 5.36:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Muted Blue (#3B719F) |
| Black text | 3.91:1 |
| White text | 5.36:1 |
Values
| HEX | #3D6DA3 |
| RGB | rgb(61, 109, 163) |
| HSL | hsl(212, 46%, 44%) |
| OKLCH | oklch(52.6% 0.101 252.7) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #3D6DA3 | 5.36:1 | AA | Lc -81.9 | Fine for body text |
| Black text on #3D6DA3 | 3.91:1 | AA large text | Lc 27.5 | Dividers and decoration only |
| #3D6DA3 text on white | 5.36:1 | AA | Lc 76.5 | Fine for body text |
| #3D6DA3 text on black | 3.91:1 | AA large text | Lc -25.2 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF3
oklch(93.7% 0.013 251.6)
-
Step 200
200
#CEDBEA
oklch(88.6% 0.025 251.9)
-
Step 300
300
#ACC3DE
oklch(80.9% 0.046 252.5)
-
Step 400
400
#80A4CD
oklch(70.7% 0.072 252.1)
-
Step 500
500
#608DC0
oklch(63.2% 0.092 252.3)
-
Step 600
600 (this color)
#3D6DA3
oklch(52.6% 0.101 252.7)
-
Step 700
700
#376394
oklch(49.1% 0.093 252.5)
-
Step 800
800
#2E5178
oklch(42.7% 0.077 252.4)
-
Step 900
900
#294361
oklch(37.6% 0.061 252.9)
-
Step 950
950
#192739
oklch(26.9% 0.039 255.1)
#3D6DA3 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #5670A5 | 0.031 |
| Deuteranopia (no green cones) | #4866A2 | 0.021 |
| Tritanopia (no blue cones) | #007980 | 0.082 |
| Achromatopsia (no color) | #6B6B6B | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D6DA3
#3D6DA3
oklch(52.6% 0.101 252.7)
- #8E601B
#8E601B
oklch(52.6% 0.101 72.3)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #3D6DA3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muted Blue #3B719F ΔE 0.015
- Flat Blue #3C73A8 ΔE 0.017
- French Blue #436BAD ΔE 0.019
- Dull Blue #49759C ΔE 0.032
- Mid Blue #276AB3 ΔE 0.033
- Ocean Blue #03719C ΔE 0.036
- Nice Blue #107AB0 ΔE 0.042
- Dusky Blue #475F94 ΔE 0.042
Use #3D6DA3 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.